Type-writing machine.



E. E. BARNEYQ TYPE WRITINVG MACHINE.

APPLICATION FILED APR-23,1917.

Patented Nov. 27, 1917.

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EDWTN' E. BARNE'I, OF ILION, NEW YORK, ASSIGNOB, TO REMINGTON TYPEWRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Patented Nov. 2?, till "2.

Original application filed November 22, 1916, Serial No. 132,782. Divided and this application filed April 23, 1917. Serial No. 163,953.

To all whom it may concern:

Be it known that I, EDWIN E. Banner, citizen of the United States, and resident of Ilion, in the county of Herkimer and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention relates to typewriting machines and more particularly to parts of the carriage feed or escapement mechanism.

The main objects of my invention, generally stated, are to provide a highly ellicient and reliable construction of the character specified which maybe readily assembled or dismantled, and the parts of which are not liable to become disarranged, broken, or thrown out of adjustment, and which effectively resist wear.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices set forth in the following description and particularly pointed out in the appended claims.

in the accompanying drawings, wherein like reference characters indicate corresponding parts in the different views,

Figure 1 is a fragmentary vertical fore and aft sectional view, showing the escapement mechanism and some of the associated parts of a No. 10 Remington typewriter.

Fig. 2 is an enlarged detail horizontal sectional view taken on the line wm of Fig. 5 and look ng in the directionof the arrows at said line.

Fig. 3 is'a detail transverse sectional view of a part of the construction, the section being taken on the line yg of F ig. 2 and looking in the direction of the arrows at said line.

Fig. at is a fragmentary detail plan view of the construction.

Fig. 5 is a detail transverse sectional view taken on the line 22 of Fig. 41- and looking in the direction of the arrows at said line. Fig. 6 is a detail perspective view of the detachable support on which certain of the back spacing devices may be mounted.

This case isa division of my application Serial No. 132,792, filed November 22, 1916 in which is claimed in combination with back spacing mechanism certain of the features disclosed and claimed herein.

In accordance with my present invention I provide an escapement wheel which is fixed to the escapement wheel shaft, operative connections between the escapement wheel and feed pinion being employed to cause the feed pinion and escapement wheel to turn together during the letter feed movements of the carriage and to enable the feed pinion to be turned in the opposite direction independently of the escapement wheel during the return movements of the carriage.

The frame of the machine comprises a top plate 3. A suitable power driven carriage (not shown) is mounted above the top plate for movement from side to side of the machine, as usual; the carriage moving from right to left in its letter space movements, under control of the escapement mechanism.

The escapement mechanism comprises a feed rack 4 carried by the carriage and meshing with a feed pinion 5. The feed pinion is fixed to and preferably formed on one end of a sleeve 6, which at its opposite end is formed with a cup-like housing or pawl-support 7. Contained within the housing, and pivotally supported at the side thereof, at 9, is a pawl 10. The nose of this pawl is forced into engagement with the teeth of a ratchet wheel 11 by a spring 12, secured at one end to the housing as at 13, and hearing at its free endagainst the pawl. The ratchet wheel 11 is secured to the escapement wheel shaft 14:, in a manner which will hereinafter appear, and is surrounded by the housing 7. The sleeve 6, carrying the pinion 5, the housing 7 and pawl 10, is mounted on the shaft 14 and is wholly supported thereby. Thus, the forward end of the sleeve is formed with a recess in the bore thereof to receive a hardened bushing 15,

sleeve in this direction.

. Th-e ratchet wheel 11 is provided The shaft 14 is supported at its ends, through ball bearings, by arms 17 and 18 of a yoke-like bracket 19. This bracket is formed with a foot-piece 20 and is apertured at 21 and 22 to receive screws 23, by which the bracket is secured to the top plate of the machine and is detachable therefrom, together with all parts of the escapement which are carried by the bracket. The arm 17 is recessed to receive a hardened ball hearing race-way 2a in which bearing balls 25 are arranged, said balls also cooperating with the hearing or race=way 26 formed at one end of the shaft 14. The opposite end of the shaft is formed with a corresponding race-way or bearing. 27 with which bearing balls. 28- of a second set co-aet. These balls are arranged in a: cotiperative race-way 29, formed in a screw 30 received and adjustable in a tapped opening in the arm 18. A locknut 31 is threaded onto the outer end of the screw and bears against the arm 18 to lock the screw in its adjusted position. It will be understood that an adjustment of the screw 30 effects a relative adjustment between the ball bearings at the opposite end of the shaft to take upany undue looseness and compensate for any wear that may take place in the bearings. The arm 17 is apertur'ed at 32 and there is a corresponding opening 33 in the screw 30 at the rear end of theshaft. V

, End'wise movement of the sleeve 6 on the shaft 14 in one direction is prevented by the ratchet wheel 11 which is fixed to the shaft and abuts the sleeve at one end thereof. Any appreciable: endwise displacement of the sleeve in the opposite direction is prevented by the opposite end of the sleeve abutting the arm 17, as indicated in Figs. 52 and 4e.

y with an elongated hub or sleeve 34 tapped to receive one or? more screws 35 the inner end of each screw bearing against the shaft 14, thus fixedly connecting the ratchet wheel to the shaft but permitting the removal of the ratchet wheel when desired. The outer surface ofthe sleeve 34: is threaded at 36 for cooperation withtheinternal threads on a .fianged collar or hub designated as a whole by the reference numeral 37. This collar when screwed home on the sleeve 3 1 will ,abut the ratchet wheel 11. A step or bearing portion 38- is formed on the collar or hub to receive the escapement; wheel 39 which is aperture'd centrally so that it may be seated on the part 38 and bear atone side against .i fiange 40 formed on the collar or hub.

for the free passage ofheaded screws 41.

the threaded ends of which engage in tapped Holes are formed in the ese'apement wheel openi n gs the flange. 40, thusfdetachably securing the esc'apement wheel to the member The hub 37 is apertured for the free passage of the screw or screws 35, the apertures in the hub registering with the tapped openings in the sleeve 3%, so that the same screws 35 that secure the part 1-l-34 on the shaft 14: also fixedly connect the collar 37 and the escapement wheel to the part 11-34 and to the shaft let. It will be understood that the construction of the escapement wheel, and the manner of mounting it, are such-that-the wheel may be hardened independently of the other-parts, and that the various other parts that are subject to wear may be separately hardened. Thus, in practice, ll prefer to harden the escapement wheel and then grindit on both sides to the required thickness before it isassembled on the hub- 37. The hub 37 may be made on an automatic machine and threaded in its bore to receive the thread of the part 34,-which last mentioned part may also be made on an automatic machine and have the ratchet teeth out thereon. Afterthe part 11+34; is

completed and is packhardened the temper is drawn from the rear .end portion of the sleeve-like part 34: to permit the same to be drilled after it is inserted inthe hub 37. The

part 3lis then screwed fully into the hub 37 after which the holes which receive the screws 4L1 aredrilled and indexedfrom the ratchet wheel 11. In this manner the teeth of the escapement wheel and the teeth of the ratchet wheel 11 may be maintained in har mony after the parts are assembled. To produce accuracy in assembling, the faceof the hub 37 to which the escapement wheel is screwed may be turned, so that there will be no variation or play between the parts. The turning of the face may be effected by introducing the hub 37 with the inserted member34--11 on to a spindle of exactly the same size as the shaft 14, or the turning may be effected while the parts are mounted on the shaft 14. After the parts are assembled,

the construction is such as to afford great acmember is substantially C-shaped in cross sectionproviding a longitudinal opening or bore 51 therein which is ope at 52. The member- 50 is provided with tapped openings 55 adaptedto receive the threaded end-sof headedscrews 56 (see Fig.

n at one side 7 emma of the support 50 is such that it may be introduced laterally around the sleeve 6 to the position it is to occupy on its curved seat or hearing 57.

l/Vhen thus positioned, the member 50 partly surrounds the sleeve 6, said sleeve passing freely through the bore 51 in the supporting member without contacting with the latter. It will be under stood that a removal of the screws 56 enables the support 50, with the parts carried thereby to be dismounted from the escapement bracket without dismounting any other part of the escapement mechanism. At this time the escapement- Wheel. shaft, and the parts carried thereby, may, if desired, be detached from the escapement bracket. It will also be understood that the member 50, together with the parts carried thereby, may be readily assembled and mounted in position on the bracket after the escapement has been assembled and mounted in place.

The escapement wheel may be controlled in any suitable manner, as by feed dogs 58 and 59 carried by a dog rocker 60 controlled by suitable connections to effect an actuation of the dog rocker at each operation of the printing keys. Thus an actuation of the dog rocker at a printing operation is effective to afford a let-off of th escapement wheel, and the power exerted by the power driven carriage through the feed rack 4: is effective to turn the pinion 5 and sleeve 6. This will cause the escapement wheel to be turned through the intermediate pawl 10 and ratchet 11, so that at this time the escape- .ment wheel, sleeve 6, feed pinion 5 and shaft 14: turn together. A return movement of the carriage, while the rack 4 is in engagement with the pinion, is effective to turn the sleeve 6 in the opposite direction on the shaft 14: independently of said shaft and the escapement wheel carried thereby; the pawl 10 and ratchet wheelll affording this independent moveinentbetween the sleeve 6 and escapement wheel and shaft.

Various changes may be made Without departing from the spirit of my invention.

"What I claim as new and desire to secure by Letters Patent. is

1. In a typewriting machine, the combination of an escapement wheel shaft mounted to turn in bearings carried by the frame of the machine, an escapement wheel fixed to said shaft, a sleeve supported by and adapted to turn on said shaft, a feed pinion fixed to said sleeve, a feed rack meshing with said feed pinion, a ratchet wheel fixedly connected to turn with said shaft and escapement wheel in both directions, and a pawl carried by said sleeve and engaging said ratchet wheel to cause the sleeve and shaft to turn together in one direction and enable the sleeve to turn independently of the shaft in the opposite direction.

2. In a typewriting machine, the combination of a yoke-like bracket detachably secured to the top plate of the machine, ball bearing members relatively adjustable on the arms of the yoke-like bracket, an escapement wheel shaft having ball bearing members at the ends thereof, an escapement wheel detachably fixed to said shaft, a sleeve adapted to turn on said shaft, a feed pinion fixed to said sleeve, a feed rack which meshes with said pinion, a pawl carried by said sleeve, and a ratchet wheel fixed to said shaft and with which said pawl co-acts to cause the sleeve and shaft to turn together in one direction and to enable the sleeve to turn in the opposite direction independently of said shaft.

3. In a typewriting machine, the combination of an escapement wheel shaft, a flanged collar detachably secured to said shaft, an escapement wheel detachably secured to said flanged collar, a ratchet wheel detachably fixed to said shaft. a sleeve adapted to turn on said shaft, a feed pinion fixed to said sleeve, a feed rack meshing with said pinion, and a pawl carried by said sleeve and I cooperative with said ratchet wheel to cause the sleeve and shaft to turn together in one direction and to enable the sleeve to turn in the opposite direction independently of said shaft.

4. In a typewriting machine, the combination of an escapement wheel shaft; a flanged collar; a set screw for detachably securing said flanged collar to said shaft; an escapernent wheel; means for detachablv connecting said escapement wheel to said flanged collar. said means including screws that are threaded into tapped openings in the flange of the collar and connect the wheel thereto; a sleeve adapted to turn on said shaft; a feed pinion fixed to said sleeve; afeed rack meshing with said pinion; and a pawl and ratchet intermediate said sleeve and shaft and operative to cause the sleeve and shaft to turn together in one direction and enable the sleeve to turn in the opposite direction independently of said shaft.

5. In a typewritin g machine, the combination of an escapement wheel shaft, an escape- ..ient wheel fixed to said shaft. a sleeve adapted to turn on said shaft. a feed pinion fixed to said sleeve, a cup-like housing fixed to the sleeve, a pawl carried by and contained within said housing, and a ratchet wheel fixed to said shaft and received in the housing and cooperative with said pawl to cause the sleeve and shaft to turn together in one direction and enable the sleeve to turn in the opposite direction independently of said shaft.

6. In a typewriting machine, the combination of an escapement wheel shaft, a flanged collar detachably secured to said shaft, an escapement wheel detachably secured to said flanged collar, a ratchet wheel detachably fixed to said shaft, a sleeve adapted to turn on said shaft, a feed pinion fixed to said sleeve, a feed rack meshing with said pinion, a cup-like housing fixed to said sleeve and surrounding said ratchet wheel, and a pawl carried by the housing and coiiperative with said ratchet wheel.

7. In a typewriting machine, the combination of an escapement wheel shaft; a flanged collar; a screw for detachably securing said flanged collar to said shaft; an escapement wheel; means for detachably connecting said escapemcnt wheel to said flanged collar, said means including screws that are threaded into tapped openings in the flange of the collar and connect the wheel thereto; a sleeve adapted to turn on said shaft; a feed pinion fixed to said sleeve; a feed rack meshing with said pinion; a ratchet wheel fixed to said shaft; a cup-like housing carried by the sleeve and surrounding said ratchet wheel; and a pawl carried by and contained within said housing and cooperative with said ratchet wheel.

8. In a typewriting machine, the combination of an escapement wheel shaft, ball bearings which support said shaft, an escapement wheel fixed to said shaft, a sleeve supported by and adapted to turn on said shaft, a feed pinion fixed to said shaft, hardened bushings at the ends of said sleeve and by which the sleeve is supported only at its ends on the shaft, and a pawl and'ratchet between said sleeve and shaft to cause the two to turn together in one direction and enable the sleeve to turn independently of the shaft in the opposite direction.

9. In a typewriting machine, the combination of an escapement wheel shaft mounted to turn in bearings carried by the frame of the machine, an escapement wheel fixed to said shaft, a sleeve supported by and adapted to turn on said shaft, hardened bushings at the ends of said sleeve and by which the sleeve is supported only at its ends on the shaft, feed pinion fixed'to saidsleeve, a feed rack meshing with said feed pinion, a ratchet wheel fixedly connected to turn with said shaft and escape ment wheel in both directions, and a pawl carried by said sleeve and engaging said" ratchet wheel to cause the sleeve and shaft toturn together in one direction and enable thesleev'e to turn independently of the shaft in the opposite dime tion. r

10. In a typewriting machine, the combination of an escapement' wheel, a threaded flanged hub, a headed screw which is thread-- ed into the flange of said hub and detachably connects the escapernent wheel thereto, an escapement wheel shaft, and a threaded sleeve (34) detachably connected to said shaft and onto which the flanged hub may be screwed.

11. In a typewriting machine,- the combination of an escapement wheel, a threaded flanged huh, a headed screw which isthreaded into the flange of said hub and detachably connects the escapeme'nt wheel thereto, an escapement wheel shaft, a threaded sleeve (3%) detachably connected to said shaft and onto' which the flanged hub may be screwed, and a screw which passes through registering openings in said flangedhub and sleeve and bears against the shaft to connect the hub and sleeve to the shaft and prevent the hub; from unscrewing from the sleeve.

12. In a typewriting machine, the combination of an escapement wheel, a flanged hub, a headed screw which is threadedinto the flange of said hub and detachably connects the escapement wheel thereto, an escapement wheel shaft, means for detachably coni'iecting said hub to the shaft, a sleeve supported by and adapted to turn on, said shaft, hardened bushings seated in recesses in said sleeve at the' ends thereof and by which the sleeve is supported only at its'ends on said shaft, a feed pinion carried by said sleeve, and a pawl and ratchetintermediate said sleeve and shaft to cause the two to turn together in one direction and enable the sleeve to turn independently of the shaft in the opposite direction.

13. In a t pe'writi-nfi enemas, the emabination of an escapernentwheelga threaded flanged hub, a headed screw which is threaded into the; flangeof said hub and detachably connects the escapement wheel thereto, an escapement wheel shaft, a ratchet wheel detachably connected to said shaft and having a threadedhub onto which the flanged hub maybe screwed',-a sleeves'upported by and adapted to turn on said shaft, a feed" pinion fixed to said sleeve, and a pawl carried by said" sleeve and" engaging said ratchet wheel to cause the sleeve and shaft to turn together one direction'and enable the sleeve to turn indbeadenuy'or theshaft 'in'the opposite direction-.- Y

14$. raa. type nnng in'ac'hiii,the combination of an eseapeiaentwneei; threaded flanged hub, headed screw which is arreaaea into turnin -ear; and hub and detaclrably" contests statement easel thereto, escapenientwheel" slfa smelter wheel detachably" connected t6 saith-shaft and having a threaded hub onto which the flanged hub may be screwed, a screw which passes through registering openings in the flanged hub and in the hub of the ratchet wheel and bears against the shaft to connect said hubs and ratchet wheel to the shaft and prevent the flanged hub from unscrewing from the hub of the ratchet wheel, a sleeve supported by and adapted to turn on said shaft, a feed pinion fixed to said sleeve, and a pawl carried by said sleeve and engaging said ratchet wheel to cause the sleeve and shaft to turn together in one direction and enable the sleeve to turn independently of the shaft in the opposite direction.

15. In a typewriting machine, the combination of an escapement wheel, a threaded flanged hub, a headed screw which is threaded into the flange of said hub and detachably connects the escapement wheel thereto, an escapement wheel shaft, a ratchet wheel detachably connected to said shaft and having a threaded hub onto which the flanged hub may be screwed, a sleeve supported by and adapted to turn on said shaft, a feed pinion fixed to said sleeve, a cup-like housing fixed to the sleeve and surrounding said ratchet wheel, a pawl carried by said housing and engaging said ratchet wheel to cause the sleeve and shaft to turn together in one direction and enable the sleeve to turn independently of the shaft in the opposite direction, and ball bearings for supporting said shaft.

16. In a typewriting machine, the combination of an escapemcnt wheel, a threaded flanged hub, a headed screw which is threaded into the flame of said hub and detachably connects the escapement wheel thereto, an escapement wheel shaft, a ratchet wheel detachably connected to said shaft and having a threaded hub onto which the flanged hub may be screwed, a sleeve supported by and adapted to turn on said shaft, hardened bushings at the ends of said sleeve and by which the sleeve is supported only at its ends on the shaft, a feed pinion fixed to said sleeve, and a pawl carried by said sleeve and engaging said ratchet wheel to copies of this patent may be obtained for five cents each,

cause the sleeve and shaft to turn together in one direction and enable the sleeve to turn independently of the shaft in the opposite direction.

17. In a typewriting machine and in an escapement mechanism, the combination of a sleeve carrying; a pinion and also a pawl support, a pawl pivotally mounted on the latter, a ratchet wheel having a hub, a shaft passing both through said hub and said sleeve, means for securing the hub to the shaft, and an escapement wheel fixedly con nected to said hub.

18. In a typewritii'ig machine and in an escapeinent mechanism, the combination of a sleeve carrying a pinion and also a pawl support, a pawl pivotally mounted on the latter, a ratchet wheel having an externally threaded elongated hub, an internally threaded hub, an escapement wheel secured to the last mentioned hub, a shaft passing through the nitchet-bearing hub and through the sleeve, and means for securing the hubs and escapement wheel to said shaft.

19. In a typewriting machine and in an escapement mechanism, the combination of a reciprocatory rack, a sleeve carrying a pinion and also a pawl, an externally threaded hub carrying at one end a ratchet wheel, an interior-1y threaded hub having astep or hearing and also a flange, an escapement wheel mounted on said step or hearing and secured to said flange, a shaft passing through said externally threaded hub and through said sleeve, and means for securing said hub to said shaft.

20. In a typewriting machine and in an escapement mechanism, the combination of a sleeve, a shaft, a one-way connection between them, a separate hub having a step and a flange and fixedly connected to said shaft, and an escapement wheel mounted 011 saidstep and secured to said flange.

Signed at llion, in the county of Herkimer, and State of New York this 19th day of April A. D. 1917.

EDYVIN E. BARNEY.

Witnesses:

GEORGE E. BRAND, CHAS. N. Unnnmvoon.

by addressing the Commissioner of Patents,

Washington, D. C. 

